/**
  ******************************************************************************
    @file    stm32f1xx_hal_wwdg.h
    @author  MCD Application Team
    @version V1.0.0
    @date    15-December-2014
    @brief   Header file of WWDG HAL module.
  ******************************************************************************
    @attention

    <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>

    Redistribution and use in source and binary forms, with or without modification,
    are permitted provided that the following conditions are met:
      1. Redistributions of source code must retain the above copyright notice,
         this list of conditions and the following disclaimer.
      2. Redistributions in binary form must reproduce the above copyright notice,
         this list of conditions and the following disclaimer in the documentation
         and/or other materials provided with the distribution.
      3. Neither the name of STMicroelectronics nor the names of its contributors
         may be used to endorse or promote products derived from this software
         without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  ******************************************************************************
*/

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F1xx_HAL_WWDG_H
#define __STM32F1xx_HAL_WWDG_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx_hal_def.h"

/** @addtogroup STM32F1xx_HAL_Driver
    @{
*/

/** @addtogroup WWDG
    @{
*/

/* Exported types ------------------------------------------------------------*/

/** @defgroup WWDG_Exported_Types WWDG Exported Types
    @{
*/

/**
    @brief  WWDG HAL State Structure definition
*/
typedef enum {
    HAL_WWDG_STATE_RESET     = 0x00,  /*!< WWDG not yet initialized or disabled */
    HAL_WWDG_STATE_READY     = 0x01,  /*!< WWDG initialized and ready for use   */
    HAL_WWDG_STATE_BUSY      = 0x02,  /*!< WWDG internal process is ongoing     */
    HAL_WWDG_STATE_TIMEOUT   = 0x03,  /*!< WWDG timeout state                   */
    HAL_WWDG_STATE_ERROR     = 0x04   /*!< WWDG error state                     */
} HAL_WWDG_StateTypeDef;

/**
    @brief  WWDG Init structure definition
*/
typedef struct {
    uint32_t Prescaler;  /*!< Specifies the prescaler value of the WWDG.
                            This parameter can be a value of @ref WWDG_Prescaler */

    uint32_t Window;     /*!< Specifies the WWDG window value to be compared to the downcounter.
                            This parameter must be a number lower than Max_Data = 0x80 */

    uint32_t Counter;    /*!< Specifies the WWDG free-running downcounter value.
                            This parameter must be a number between Min_Data = 0x40 and Max_Data = 0x7F */

} WWDG_InitTypeDef;

/**
    @brief  WWDG handle Structure definition
*/
typedef struct {
    WWDG_TypeDef*                 Instance;  /*!< Register base address    */

    WWDG_InitTypeDef             Init;       /*!< WWDG required parameters */

    HAL_LockTypeDef              Lock;       /*!< WWDG locking object      */

    __IO HAL_WWDG_StateTypeDef   State;      /*!< WWDG communication state */

} WWDG_HandleTypeDef;

/**
    @}
*/

/* Exported constants --------------------------------------------------------*/

/** @defgroup WWDG_Exported_Constants WWDG Exported Constants
    @{
*/

/** @defgroup WWDG_Interrupt_definition WWDG Interrupt definition
    @{
*/
#define WWDG_IT_EWI                       WWDG_CFR_EWI  /*!< Early wakeup interrupt */
/**
    @}
*/

/** @defgroup WWDG_Flag_definition WWDG Flag definition
    @brief WWDG Flag definition
    @{
*/
#define WWDG_FLAG_EWIF                    WWDG_SR_EWIF  /*!< Early wakeup interrupt flag */
/**
    @}
*/

/** @defgroup WWDG_Prescaler WWDG Prescaler
    @{
*/
#define WWDG_PRESCALER_1   ((uint32_t)0x00000000)  /*!< WWDG counter clock = (PCLK1/4096)/1 */
#define WWDG_PRESCALER_2                  WWDG_CFR_WDGTB0  /*!< WWDG counter clock = (PCLK1/4096)/2 */
#define WWDG_PRESCALER_4                  WWDG_CFR_WDGTB1  /*!< WWDG counter clock = (PCLK1/4096)/4 */
#define WWDG_PRESCALER_8                  WWDG_CFR_WDGTB  /*!< WWDG counter clock = (PCLK1/4096)/8 */

/**
    @}
*/

/**
    @}
*/

/* Private macros ------------------------------------------------------------*/

/** @defgroup WWDG_Private_Macros WWDG Private Macros
    @{
*/
#define IS_WWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == WWDG_PRESCALER_1) || \
        ((__PRESCALER__) == WWDG_PRESCALER_2) || \
        ((__PRESCALER__) == WWDG_PRESCALER_4) || \
        ((__PRESCALER__) == WWDG_PRESCALER_8))

#define IS_WWDG_WINDOW(__WINDOW__) ((__WINDOW__) <= 0x7F)


#define IS_WWDG_COUNTER(__COUNTER__) (((__COUNTER__) >= 0x40) && ((__COUNTER__) <= 0x7F))
/**
    @}
*/


/* Exported macros ------------------------------------------------------------*/

/** @defgroup WWDG_Exported_Macros WWDG Exported Macros
    @{
*/

/** @brief Reset WWDG handle state
    @param  __HANDLE__: WWDG handle
    @retval None
*/
#define __HAL_WWDG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_WWDG_STATE_RESET)

/**
    @brief  Enables the WWDG peripheral.
    @param  __HANDLE__: WWDG handle
    @retval None
*/
#define __HAL_WWDG_ENABLE(__HANDLE__)             SET_BIT((__HANDLE__)->Instance->CR, WWDG_CR_WDGA)

/**
    @brief  Disables the WWDG peripheral.
    @param  __HANDLE__: WWDG handle
    @note   WARNING: This is a dummy macro for HAL code alignment.
            Once enable, WWDG Peripheral cannot be disabled except by a system reset.
    @retval None
*/
#define __HAL_WWDG_DISABLE(__HANDLE__)                      /* dummy  macro */

/**
    @brief  Enables the WWDG early wakeup interrupt.
    @param  __HANDLE__: WWDG handle
    @param  __INTERRUPT__: specifies the interrupt to enable.
            This parameter can be one of the following values:
               @arg WWDG_IT_EWI: Early wakeup interrupt
    @note   Once enabled this interrupt cannot be disabled except by a system reset.
    @retval None
*/
#define __HAL_WWDG_ENABLE_IT(__HANDLE__, __INTERRUPT__)     SET_BIT((__HANDLE__)->Instance->CFR, (__INTERRUPT__))

/**
    @brief  Disables the WWDG early wakeup interrupt.
    @param  __HANDLE__: WWDG handle
    @param  __INTERRUPT__: specifies the interrupt to disable.
            This parameter can be one of the following values:
               @arg WWDG_IT_EWI: Early wakeup interrupt
    @note   WARNING: This is a dummy macro for HAL code alignment.
            Once enabled this interrupt cannot be disabled except by a system reset.
    @retval None
*/
#define __HAL_WWDG_DISABLE_IT(__HANDLE__, __INTERRUPT__)                   /* dummy  macro */

/**
    @brief  Gets the selected WWDG's it status.
    @param  __HANDLE__: WWDG handle
    @param  __INTERRUPT__: specifies the it to check.
           This parameter can be one of the following values:
               @arg WWDG_FLAG_EWIF: Early wakeup interrupt IT
    @retval The new state of WWDG_FLAG (SET or RESET).
*/
#define __HAL_WWDG_GET_IT(__HANDLE__, __INTERRUPT__)       __HAL_WWDG_GET_FLAG((__HANDLE__),(__INTERRUPT__))

/** @brief  Clear the WWDG's interrupt pending bits
            bits to clear the selected interrupt pending bits.
    @param  __HANDLE__: WWDG handle
    @param  __INTERRUPT__: specifies the interrupt pending bit to clear.
            This parameter can be one of the following values:
               @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
*/
#define __HAL_WWDG_CLEAR_IT(__HANDLE__, __INTERRUPT__)     __HAL_WWDG_CLEAR_FLAG((__HANDLE__), (__INTERRUPT__))

/**
    @brief  Gets the selected WWDG's flag status.
    @param  __HANDLE__: WWDG handle
    @param  __FLAG__: specifies the flag to check.
            This parameter can be one of the following values:
               @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
    @retval The new state of WWDG_FLAG (SET or RESET).
*/
#define __HAL_WWDG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))

/**
    @brief  Clears the WWDG's pending flags.
    @param  __HANDLE__: WWDG handle
    @param  __FLAG__: specifies the flag to clear.
            This parameter can be one of the following values:
               @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
    @retval None
*/
#define __HAL_WWDG_CLEAR_FLAG(__HANDLE__, __FLAG__)         ((__HANDLE__)->Instance->SR = ~(__FLAG__))

/** @brief  Checks if the specified WWDG interrupt source is enabled or disabled.
    @param  __HANDLE__: WWDG Handle.
    @param  __INTERRUPT__: specifies the WWDG interrupt source to check.
             This parameter can be one of the following values:
               @arg WWDG_IT_EWI: Early Wakeup Interrupt
    @retval state of __INTERRUPT__ (TRUE or FALSE).
*/
#define __HAL_WWDG_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->CFR & (__INTERRUPT__)) == (__INTERRUPT__))

/**
    @}
*/

/* Exported functions --------------------------------------------------------*/

/** @addtogroup WWDG_Exported_Functions
    @{
*/

/** @addtogroup WWDG_Exported_Functions_Group1
    @{
*/
/* Initialization/de-initialization functions  **********************************/
HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef* hwwdg);
HAL_StatusTypeDef HAL_WWDG_DeInit(WWDG_HandleTypeDef* hwwdg);
void HAL_WWDG_MspInit(WWDG_HandleTypeDef* hwwdg);
void HAL_WWDG_MspDeInit(WWDG_HandleTypeDef* hwwdg);
void HAL_WWDG_WakeupCallback(WWDG_HandleTypeDef* hwwdg);

/**
    @}
*/

/** @addtogroup WWDG_Exported_Functions_Group2
    @{
*/
/* I/O operation functions ******************************************************/
HAL_StatusTypeDef HAL_WWDG_Start(WWDG_HandleTypeDef* hwwdg);
HAL_StatusTypeDef HAL_WWDG_Start_IT(WWDG_HandleTypeDef* hwwdg);
HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef* hwwdg, uint32_t Counter);
void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef* hwwdg);

/**
    @}
*/

/** @addtogroup WWDG_Exported_Functions_Group3
    @{
*/
/* Peripheral State functions  **************************************************/
HAL_WWDG_StateTypeDef HAL_WWDG_GetState(WWDG_HandleTypeDef* hwwdg);

/**
    @}
*/

/**
    @}
*/

/**
    @}
*/

/**
    @}
*/

#ifdef __cplusplus
}
#endif

#endif /* __STM32F1xx_HAL_WWDG_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
